Publication - Journal Article Luminaire Dirt Depreciation (LDD): Field Data from Several Exterior Lighting Projects DOI https://doi.org/10.1080/15502724.2018.1517598 Journal Article LEUKOS, vol. 15, iss. 1, pp. 55-63, 2018 Authors Robert G. Davis, Andrea M. Wilkerson, Bruce R. Kinzey Language English
